// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()
const db = cloud.database({
  throwOnNotFound: false
})
const _ = db.command
// 云函数入口函数
exports.main = async (event, context) => { 

  return await db.collection("userInfo").where({
    userID:event.userID //进行筛选
 }).update({
   data: {
     auditexchange: _.inc(-1),
     finishedexchange: _.inc(+1), 
   }
 });



}